Abstract: With the continuous improvement of transportation demand in China, the fields involved in transportation construction engineering are also expanding. Therefore, tunnel engineering is facing great challenges. This article aims to improve the tunnel entry technology of super-large cross-section tunnels, combined with actual engineering cases. First, analyze the theory and development characteristics of the super-large cross-section tunnel; secondly,analyze the corresponding engineering examples; and finally, according to the actual situation of the project, analyze how to implement the construction technology of safe tunnel entry under the super-large cross-section condition.Through the discussion in this article, we hope that we can comprehensively improve the construction quality of current traffic engineering and further optimize the safety and stability of tunnel construction.